Earlier this week, Teen Mom OG star Tyler Baltierra was accused of cheating on his wife, Catelynn Lowell! After a blind item surfaced on Crazy Days and Nights claiming he was unfaithful, the couple took to Twitter to blast the rumors. “Damn it! We really tried keeping that a secret too! Well I’m sorry, I couldn’t resist her/him… idk it was dark and I was drunk," he tweeted. And she wrote, “Well since it’s out in the open @TylerBaltierra did cheat on me. He’s busted.”

Teen Mom 2 stars Kailyn Lowry and Javi Marroquin's marriage crumbled because of cheating, as he claims. Back in August, Javi revealed to RadarOnline.com, “I found out a lot of things while I was overseas that were a deal breaker. It was too much damage that can’t be undone.”

The start of 2017 didn't go too well for former Teen Mom 3 star Mackenzie Mckee! Her on-again-off-again husband, Josh Mckee, accused her of infidelity after he found out she was talking to another man! She told RadarOnline.com, “There was a guy I was texting, but there was no flirting or affair. I didn’t do that. His ex-wife found out and sent Josh a message. That is what he’s going off of.”

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Photo credit: MTV

Photo credit: MTV

Teen Mom 2 star Jenelle Evans' relationship with her ex, Nathan Griffith, was anything but smooth sailing. After being on-and-off for years, the two officially split in August 2015. Before they parted ways, she accused him of cheating on her with his then-girlfriend, Jessica.

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Photo credit: MTV

Photo credit: MTV

Back in 2012, Kail was dating her then-boyfriend Jordan Wenner...but things didn't end too well thanks to her ex, Jo Rivera! Kail admitted to cheating on Jordan with her first baby daddy during a one-night stand.

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Photo credit: MTV

Photo credit: MTV

Teen Mom 2 star Chelsea Houska had a very long and complicated relationship with her first baby daddy and ex, Adam Lind. However, back in 2011, she kicked him out of the house after he admitted to cheating on her!

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Photo credit: MTV

Photo credit: MTV

Not the way you want to kick off your wedding week! Back in 2012, Teen Mom 2 star Leah Messer confessed to her first ex-husband, Corey Simms, that she cheated on him days before they got married.

In April 2015, Amber Portwood accused her future husband, Matt Baier, of cheating on her and announced it via Twitter! According to RadarOnline.com, she tweeted, “Every man I give my heart to uses me and cheats on me @mattbEPT.” She immediately deleted the post but added, “We’re going to try to work out it."

Which cheating scandal do you think was the worst in Teen Mom history? Let us know your thoughts in the comments section!

It's not easy dating, getting married, or even divorcing in the Teen Mom world! Click through to see the biggest and most explosive cheating scandals with the cast.

Earlier this week, Teen Mom OG star Tyler Baltierra was accused of cheating on his wife, Catelynn Lowell! After a blind item surfaced on Crazy Days and Nights claiming he was unfaithful, the couple took to Twitter to blast the rumors. “Damn it! We really tried keeping that a secret too! Well I’m sorry, I couldn’t resist her/him… idk it was dark and I was drunk," he tweeted. And she wrote, “Well since it’s out in the open @TylerBaltierra did cheat on me. He’s busted.”

Teen Mom 2 stars Kailyn Lowry and Javi Marroquin's marriage crumbled because of cheating, as he claims. Back in August, Javi revealed to RadarOnline.com, “I found out a lot of things while I was overseas that were a deal breaker. It was too much damage that can’t be undone.”

The start of 2017 didn't go too well for former Teen Mom 3 star Mackenzie Mckee! Her on-again-off-again husband, Josh Mckee, accused her of infidelity after he found out she was talking to another man! She told RadarOnline.com, “There was a guy I was texting, but there was no flirting or affair. I didn’t do that. His ex-wife found out and sent Josh a message. That is what he’s going off of.”

Teen Mom 2 star Jenelle Evans' relationship with her ex, Nathan Griffith, was anything but smooth sailing. After being on-and-off for years, the two officially split in August 2015. Before they parted ways, she accused him of cheating on her with his then-girlfriend, Jessica.

Back in 2012, Kail was dating her then-boyfriend Jordan Wenner...but things didn't end too well thanks to her ex, Jo Rivera! Kail admitted to cheating on Jordan with her first baby daddy during a one-night stand.

Teen Mom 2 star Chelsea Houska had a very long and complicated relationship with her first baby daddy and ex, Adam Lind. However, back in 2011, she kicked him out of the house after he admitted to cheating on her!

Not the way you want to kick off your wedding week! Back in 2012, Teen Mom 2 star Leah Messer confessed to her first ex-husband, Corey Simms, that she cheated on him days before they got married.

In April 2015, Amber Portwood accused her future husband, Matt Baier, of cheating on her and announced it via Twitter! According to RadarOnline.com, she tweeted, “Every man I give my heart to uses me and cheats on me @mattbEPT.” She immediately deleted the post but added, “We’re going to try to work out it."

Which cheating scandal do you think was the worst in Teen Mom history? Let us know your thoughts in the comments section!